Deserialize multiple list xml and bind to Datagridview

See more:

XML

DataGridView

Binding

, +

This is my XML structure after serializing

<?xml version="1.0"?>
    <ArrayOfTaskModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
      <TaskModel>
        <TaskID>Task ID 1</TaskID>
        <TaskDecs>Task Desc 1</TaskDecs>
        <TaskPerson>Task Person 1</TaskPerson>
        <TaskLong>Task Long 1</TaskLong>
        <TaskLat>Task lat 1</TaskLat>
        <TaskQuestions>
          <TaskQuestion>
            <TaskQuestionId>1</TaskQuestionId>
            <TaskQuestionType>Task Type 1</TaskQuestionType>
            <TaskQuestionTitle>Task Title 1</TaskQuestionTitle>
            <TaskQuestionDesc>Task Desc 1</TaskQuestionDesc>
            <TaskQuestionAnswers>
              <string>test</string>
              <string>test2</string>
            </TaskQuestionAnswers>
            <Answers>
              <string>test</string>
              <string>test2</string>
            </Answers>
          </TaskQuestion>
        </TaskQuestions>
      </TaskModel>
    </ArrayOfTaskModel>

Now I want to add all data from this xml file into my datagridview. I tried to use this code

XmlSerializer xmlser = new XmlSerializer(typeof(List<TaskModel>));
StreamReader srdr = new StreamReader(@"D:\myfile.xml");
List<TaskModel> p = (List<TaskModel>)xmlser.Deserialize(srdr);
srdr.Close();
dataGridView1.DataSource = p;

With my TaskModel class is

public class TaskModel
{
    public string TaskID { get; set; }
    public string TaskTitle { get; set; }
    public string TaskDecs { get; set; }
    public string TaskPerson { get; set; }
    public string TaskLong { get; set; }
    public string TaskLat { get; set; }
    public string TaskTime { get; set; }
    public List<TaskQuestion> TaskQuestions { get; set; }
}

And TaskQuestion.cs is

public class TaskQuestion
{
    public string TaskQuestionId { get; set; }
    public string TaskQuestionType { get; set; }
    public string TaskQuestionTitle { get; set; }
    public string TaskQuestionDesc { get; set; }
    public List<string> TaskQuestionAnswers { get; set; }
    public List<string> Answers { get; set; }
}

If I deserialize with the above code, I just get some element of TaskModel, except TaskQuestions because it's a list. How can I get it and bind to my datagridview? I want to display the following result into dataGridView, such as

TaskID | TaskTitle | Task Desc | TaskQuestionID | TaskQuestionType | TaskQuestionAnswers 
Please help me.